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-rw-r--r--Zend/zend_types.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/Zend/zend_types.h b/Zend/zend_types.h
index 3b1ec85452..82cf20f1b5 100644
--- a/Zend/zend_types.h
+++ b/Zend/zend_types.h
@@ -150,7 +150,7 @@ typedef struct {
/* Type mask excluding the flags above. */
#define _ZEND_TYPE_MAY_BE_MASK ((1u << 20) - 1)
/* Must have same value as MAY_BE_NULL */
-#define _ZEND_TYPE_NULLABLE_BIT 0x2
+#define _ZEND_TYPE_NULLABLE_BIT 0x2u
#define ZEND_TYPE_IS_SET(t) \
(((t).type_mask & _ZEND_TYPE_MASK) != 0)